January 2017
Intermediate to advanced
420 pages
9h 25m
English
Content preview from Programming KotlinBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Custom DSLs
A domain-specific language, or DSL, is a language that is specialized for one particular area. For example, online issue trackers, such as Jira, often come with a "little language" for querying, designed to make it easier to perform advanced searches. In programming, we most often see DSLs in the form of an API that has been tailored to make usage of the API easier.
Since Kotlin provides many features around the use of functions-named parameters, default parameters, operator overloading, and infix functions, to name a few-it makes Kotlin a powerful tool for creating your own custom DSL.
In this section, we will create a custom DSL used for assertions. This kind of functionality is often used in testing or behavior-driven development. ...
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